qca2: Patch for gcc 4.7+ (close #738).

Thanks to
http://lists.pld-linux.org/mailman/pipermail/pld-cvs-commit/Week-of-Mon-20120917/347917.html
Revert "e2fsprogs: Fix manpages", no more need for this

This reverts commit 7f4e47383281875c9712e94666917a22ca63e897.
See #523 and #529.
strigi: patch to compile on stdenv-updates (close #755)

This patch exports a class with STRIGI_EXPORT that wasn't exported
before.